Commit Graph

887872 Commits

Author SHA1 Message Date
Joakim Zhang
618ea6275b dt-bindings: interrupt-controller: Add binding for NXP INTMUX interrupt multiplexer
This patch adds the DT bindings for the NXP INTMUX interrupt multiplexer
for i.MX8 family SoCs.

Signed-off-by: Joakim Zhang <qiangqing.zhang@nxp.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20200117060653.27485-2-qiangqing.zhang@nxp.com
2020-01-20 19:10:05 +00:00
Hyunki Koo
b74416dba3 irqchip: Define EXYNOS_IRQ_COMBINER
This patch is written to clean up dependency of ARCH_EXYNOS
Not all exynos device have IRQ_COMBINER, especially aarch64 EXYNOS
but it is built for all exynos devices.
Thus add the config for EXYNOS_IRQ_COMBINER
remove direct dependency between ARCH_EXYNOS and exynos-combiner.c
and only selected on the aarch32 devices

Signed-off-by: Hyunki Koo <hyunki00.koo@samsung.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Link: https://lore.kernel.org/r/20191224211108.7128-1-hyunki00.koo@gmail.com
2020-01-20 19:10:05 +00:00
Qianggui Song
8f78bd62bd irqchip/meson-gpio: Add support for meson a1 SoCs
The meson a1 Socs have some changes compared with previous
chips. For A113L, it contains 62 pins and can be spied on:

- 62:128 undefined
- 61:50 12 pins on bank A
- 49:37 13 pins on bank F
- 36:20 17 pins on bank X
- 19:13 7  pins on bank B
- 12:0  13 pins on bank P

There are five relative registers for gpio interrupt controller,
details are as below:

- PADCTRL_GPIO_IRQ_CTRL0
  bit[31]:    enable/disable the whole irq lines
  bit[16-23]: both edge trigger
  bit[8-15]:  single edge trigger
  bit[0-7]:   pol trigger

- PADCTRL_GPIO_IRQ_CTRL[X]
  bit[0-6]:   7 bits to choose gpio source for irq line 2*[X] - 2
  bit[16-22]: 7 bits to choose gpio source for irq line 2*[X] - 1
  where X =1,2,3,4

Signed-off-by: Qianggui Song <qianggui.song@amlogic.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20191216123645.10099-4-qianggui.song@amlogic.com
2020-01-20 19:10:05 +00:00
Qianggui Song
e2514165f3 irqchip/meson-gpio: Rework meson irqchip driver to support meson-A1 SoCs
Since Meson-A1 SoCs register layout of gpio interrupt controller has
difference with previous chips, registers to decide irq line and offset
of trigger method are all changed, the current driver should be modified.

Signed-off-by: Qianggui Song <qianggui.song@amlogic.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20191216123645.10099-3-qianggui.song@amlogic.com
2020-01-20 19:10:05 +00:00
Qianggui Song
fd6765b4c9 dt-bindings: interrupt-controller: New binding for Meson-A1 SoCs
Update dt-binding document for GPIO interrupt controller of Meson-A1 SoCs

Signed-off-by: Qianggui Song <qianggui.song@amlogic.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20191216123645.10099-2-qianggui.song@amlogic.com
2020-01-20 19:10:05 +00:00
John Garry
d6152e6ec9 irqchip/mbigen: Set driver .suppress_bind_attrs to avoid remove problems
The following crash can be seen for setting
CONFIG_DEBUG_TEST_DRIVER_REMOVE=y for DT FW (which some people still use):

Hisilicon MBIGEN-V2 60080000.interrupt-controller: Failed to create mbi-gen irqdomain
Hisilicon MBIGEN-V2: probe of 60080000.interrupt-controller failed with error -12

[...]

Unable to handle kernel paging request at virtual address 0000000000005008
 Mem abort info:
   ESR = 0x96000004
   EC = 0x25: DABT (current EL), IL = 32 bits
   SET = 0, FnV = 0
   EA = 0, S1PTW = 0
 Data abort info:
   ISV = 0, ISS = 0x00000004
   CM = 0, WnR = 0
 user pgtable: 4k pages, 48-bit VAs, pgdp=0000041fb9990000
 [0000000000005008] pgd=0000000000000000
 Internal error: Oops: 96000004 [#1] PREEMPT SMP
 Modules linked in:
 CPU: 7 PID: 1 Comm: swapper/0 Not tainted 5.5.0-rc6-00002-g3fc42638a506-dirty #1622
 Hardware name: Huawei Taishan 2280 /D05, BIOS Hisilicon D05 IT21 Nemo 2.0 RC0 04/18/2018
 pstate: 40000085 (nZcv daIf -PAN -UAO)
 pc : mbigen_set_type+0x38/0x60
 lr : __irq_set_trigger+0x6c/0x188
 sp : ffff800014b4b400
 x29: ffff800014b4b400 x28: 0000000000000007
 x27: 0000000000000000 x26: 0000000000000000
 x25: ffff041fd83bd0d4 x24: ffff041fd83bd188
 x23: 0000000000000000 x22: ffff80001193ce00
 x21: 0000000000000004 x20: 0000000000000000
 x19: ffff041fd83bd000 x18: ffffffffffffffff
 x17: 0000000000000000 x16: 0000000000000000
 x15: ffff8000119098c8 x14: ffff041fb94ec91c
 x13: ffff041fb94ec1a1 x12: 0000000000000030
 x11: 0101010101010101 x10: 0000000000000040
 x9 : 0000000000000000 x8 : ffff041fb98c6680
 x7 : ffff800014b4b380 x6 : ffff041fd81636c8
 x5 : 0000000000000000 x4 : 000000000000025f
 x3 : 0000000000005000 x2 : 0000000000005008
 x1 : 0000000000000004 x0 : 0000000080000000
 Call trace:
  mbigen_set_type+0x38/0x60
  __setup_irq+0x744/0x900
  request_threaded_irq+0xe0/0x198
  pcie_pme_probe+0x98/0x118
  pcie_port_probe_service+0x38/0x78
  really_probe+0xa0/0x3e0
  driver_probe_device+0x58/0x100
  __device_attach_driver+0x90/0xb0
  bus_for_each_drv+0x64/0xc8
  __device_attach+0xd8/0x138
  device_initial_probe+0x10/0x18
  bus_probe_device+0x90/0x98
  device_add+0x4c4/0x770
  device_register+0x1c/0x28
  pcie_port_device_register+0x1e4/0x4f0
  pcie_portdrv_probe+0x34/0xd8
  local_pci_probe+0x3c/0xa0
  pci_device_probe+0x128/0x1c0
  really_probe+0xa0/0x3e0
  driver_probe_device+0x58/0x100
  __device_attach_driver+0x90/0xb0
  bus_for_each_drv+0x64/0xc8
  __device_attach+0xd8/0x138
  device_attach+0x10/0x18
  pci_bus_add_device+0x4c/0xb8
  pci_bus_add_devices+0x38/0x88
  pci_host_probe+0x3c/0xc0
  pci_host_common_probe+0xf0/0x208
  hisi_pcie_almost_ecam_probe+0x24/0x30
  platform_drv_probe+0x50/0xa0
  really_probe+0xa0/0x3e0
  driver_probe_device+0x58/0x100
  device_driver_attach+0x6c/0x90
  __driver_attach+0x84/0xc8
  bus_for_each_dev+0x74/0xc8
  driver_attach+0x20/0x28
  bus_add_driver+0x148/0x1f0
  driver_register+0x60/0x110
  __platform_driver_register+0x40/0x48
  hisi_pcie_almost_ecam_driver_init+0x1c/0x24

The specific problem here is that the mbigen driver real probe has failed
as the mbigen_of_create_domain()->of_platform_device_create() call fails,
the reason for that being that we never destroyed the platform device
created during the remove test dry run and there is some conflict.

Since we generally would never want to unbind this driver, and to save
adding a driver tear down path for that, just set the driver
.suppress_bind_attrs member to avoid this possibility.

Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Hanjun Guo <guohanjun@huawei.com>
Link: https://lore.kernel.org/r/1579196323-180137-1-git-send-email-john.garry@huawei.com
2020-01-20 19:10:04 +00:00
Eddie James
04f605906f irqchip: Add Aspeed SCU interrupt controller
The Aspeed SOCs provide some interrupts through the System Control
Unit registers. Add an interrupt controller that provides these
interrupts to the system.

Signed-off-by: Eddie James <eajames@linux.ibm.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Andrew Jeffery <andrew@aj.id.au>
Link: https://lore.kernel.org/r/1579123790-6894-3-git-send-email-eajames@linux.ibm.com
2020-01-20 19:10:04 +00:00
Eddie James
5350a237b4 dt-bindings: interrupt-controller: Add Aspeed SCU interrupt controller
Document the Aspeed SCU interrupt controller and add an include file
for the interrupts it provides.

Signed-off-by: Eddie James <eajames@linux.ibm.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Acked-by: Andrew Jeffery <andrew@aj.id.au>
Link: https://lore.kernel.org/r/1579123790-6894-2-git-send-email-eajames@linux.ibm.com
2020-01-20 19:10:03 +00:00
Yash Shah
96868dce64 gpio/sifive: Add GPIO driver for SiFive SoCs
Adds the GPIO driver for SiFive RISC-V SoCs.

Signed-off-by: Wesley W. Terpstra <wesley@sifive.com>
[Atish: Various fixes and code cleanup]
Signed-off-by: Atish Patra <atish.patra@wdc.com>
Signed-off-by: Yash Shah <yash.shah@sifive.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/1575976274-13487-6-git-send-email-yash.shah@sifive.com
2020-01-20 19:10:03 +00:00
Yash Shah
7875f82424 gpio/sifive: Add DT documentation for SiFive GPIO
DT json-schema for GPIO controller added.

Signed-off-by: Wesley W. Terpstra <wesley@sifive.com>
[Atish: Compatible string update]
Signed-off-by: Atish Patra <atish.patra@wdc.com>
Signed-off-by: Yash Shah <yash.shah@sifive.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/1575976274-13487-5-git-send-email-yash.shah@sifive.com
2020-01-20 09:26:05 +00:00
Yash Shah
466008f984 irqchip/sifive-plic: Support irq domain hierarchy
Add support for hierarchical irq domains. This is needed as
pre-requisite for gpio-sifive driver.

Signed-off-by: Yash Shah <yash.shah@sifive.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/1575976274-13487-4-git-send-email-yash.shah@sifive.com
2020-01-20 09:24:56 +00:00
Yash Shah
459c3bc8c4 irqchip/nvic: Use irq_domain_translate_onecell instead of custom func
Make use of newly introduced irq_domain_translate_onecell() instead of
custom made function.

Signed-off-by: Yash Shah <yash.shah@sifive.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/1575976274-13487-3-git-send-email-yash.shah@sifive.com
2020-01-20 09:24:47 +00:00
Yash Shah
b01ecceaf2 genirq: Introduce irq_domain_translate_onecell
Add a new function irq_domain_translate_onecell() that is to be used as
the translate function in struct irq_domain_ops.

Signed-off-by: Yash Shah <yash.shah@sifive.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/1575976274-13487-2-git-send-email-yash.shah@sifive.com
2020-01-20 09:19:33 +00:00
Linus Torvalds
fd6988496e Linux 5.5-rc4 v5.5-rc4 2019-12-29 15:29:16 -08:00
Linus Torvalds
a99efa0089 Merge tag 'riscv/for-v5.5-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux
Pull RISC-V fixes from Paul Walmsley:
 "One important fix for RISC-V:

   - Redirect any incoming syscall with an ID less than -1 to
     sys_ni_syscall, rather than allowing them to fall through into the
     syscall handler.

  and two minor build fixes:

   - Export __asm_copy_{from,to}_user() from where they are defined.
     This fixes a build error triggered by some randconfigs.

   - Export flush_icache_all(). I'd resisted this before, since
     historically we didn't want modules to be able to flush the I$
     directly; but apparently everyone else is doing it now"

* tag 'riscv/for-v5.5-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
  riscv: export flush_icache_all to modules
  riscv: reject invalid syscalls below -1
  riscv: fix compile failure with EXPORT_SYMBOL() & !MMU
2019-12-29 10:01:27 -08:00
Linus Torvalds
d75663868d Merge tag 'locks-v5.5-1' of git://git.kernel.org/pub/scm/linux/kernel/git/jlayton/linux
Pull /proc/locks formatting fix from Jeff Layton:
 "This is a trivial fix for a _very_ long standing bug in /proc/locks
  formatting. Ordinarily, I'd wait for the merge window for something
  like this, but it is making it difficult to validate some overlayfs
  fixes.

  I've also gone ahead and marked this for stable"

* tag 'locks-v5.5-1' of git://git.kernel.org/pub/scm/linux/kernel/git/jlayton/linux:
  locks: print unsigned ino in /proc/locks
2019-12-29 09:50:57 -08:00
Linus Torvalds
cc2f36ec71 Merge tag '5.5-rc3-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6
Pull cifs fixes from Steve French:
 "One performance fix for large directory searches, and one minor style
  cleanup noticed by Clang"

* tag '5.5-rc3-smb3-fixes' of git://git.samba.org/sfrench/cifs-2.6:
  cifs: Optimize readdir on reparse points
  cifs: Adjust indentation in smb2_open_file
2019-12-29 09:48:47 -08:00
Amir Goldstein
98ca480a8f locks: print unsigned ino in /proc/locks
An ino is unsigned, so display it as such in /proc/locks.

Cc: stable@vger.kernel.org
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Jeff Layton <jlayton@kernel.org>
2019-12-29 09:00:58 -05:00
Olof Johansson
1833e327a5 riscv: export flush_icache_all to modules
This is needed by LKDTM (crash dump test module), it calls
flush_icache_range(), which on RISC-V turns into flush_icache_all(). On
other architectures, the actual implementation is exported, so follow
that precedence and export it here too.

Fixes build of CONFIG_LKDTM that fails with:
ERROR: "flush_icache_all" [drivers/misc/lkdtm/lkdtm.ko] undefined!

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Paul Walmsley <paul.walmsley@sifive.com>
2019-12-27 21:51:01 -08:00
David Abdurachmanov
556f47ac60 riscv: reject invalid syscalls below -1
Running "stress-ng --enosys 4 -t 20 -v" showed a large number of kernel oops
with "Unable to handle kernel paging request at virtual address" message. This
happens when enosys stressor starts testing random non-valid syscalls.

I forgot to redirect any syscall below -1 to sys_ni_syscall.

With the patch kernel oops messages are gone while running stress-ng enosys
stressor.

Signed-off-by: David Abdurachmanov <david.abdurachmanov@sifive.com>
Fixes: 5340627e3f ("riscv: add support for SECCOMP and SECCOMP_FILTER")
Signed-off-by: Paul Walmsley <paul.walmsley@sifive.com>
2019-12-27 21:50:57 -08:00
Luc Van Oostenryck
4d47ce158e riscv: fix compile failure with EXPORT_SYMBOL() & !MMU
When support for !MMU was added, the declaration of
__asm_copy_to_user() & __asm_copy_from_user() were #ifdefed
out hence their EXPORT_SYMBOL() give an error message like:
  .../riscv_ksyms.c:13:15: error: '__asm_copy_to_user' undeclared here
  .../riscv_ksyms.c:14:15: error: '__asm_copy_from_user' undeclared here

Since these symbols are not defined with !MMU it's wrong to export them.
Same for __clear_user() (even though this one is also declared in
include/asm-generic/uaccess.h and thus doesn't give an error message).

Fix this by doing the EXPORT_SYMBOL() directly where these symbols
are defined: inside lib/uaccess.S itself.

Fixes: 6bd33e1ece ("riscv: fix compile failure with EXPORT_SYMBOL() & !MMU")
Reported-by: kbuild test robot <lkp@intel.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Palmer Dabbelt <palmer@dabbelt.com>
Cc: Paul Walmsley <paul.walmsley@sifive.com>
Signed-off-by: Luc Van Oostenryck <luc.vanoostenryck@gmail.com>
Signed-off-by: Paul Walmsley <paul.walmsley@sifive.com>
2019-12-27 21:44:36 -08:00
Linus Torvalds
bf8d1cd438 Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
 "Four fixes and one spelling update, all in drivers: two in lpfc and
  the rest in mp3sas, cxgbi and target"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  scsi: target/iblock: Fix protection error with blocks greater than 512B
  scsi: libcxgbi: fix NULL pointer dereference in cxgbi_device_destroy()
  scsi: lpfc: fix spelling mistakes of asynchronous
  scsi: lpfc: fix build failure with DEBUGFS disabled
  scsi: mpt3sas: Fix double free in attach error handling
2019-12-27 17:28:41 -08:00
Linus Torvalds
48a8dd1719 Merge tag 'drm-fixes-2019-12-28' of git://anongit.freedesktop.org/drm/drm
Pull drm fixes from Dave Airlie:
 "Post-xmas food coma recovery fixes. Only three fixes for i915 since I
  expect most people are holidaying.

  i915:
   - power management rc6 fix
   - framebuffer tracking fix
   - display power management ratelimit fix"

* tag 'drm-fixes-2019-12-28' of git://anongit.freedesktop.org/drm/drm:
  drm/i915: Hold reference to intel_frontbuffer as we track activity
  drm/i915/gt: Ratelimit display power w/a
  drm/i915/pmu: Ensure monotonic rc6
2019-12-27 13:21:06 -08:00
Linus Torvalds
f4b3974602 Merge tag 'linux-kselftest-5.5-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
Pull Kselftest fixes from Shuah Khan:

 - rseq build failures fixes related to glibc 2.30 compatibility from
   Mathieu Desnoyers

 - Kunit fixes and cleanups from SeongJae Park

 - Fixes to filesystems/epoll, firmware, and livepatch build failures
   and skip handling.

* tag 'linux-kselftest-5.5-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
  rseq/selftests: Clarify rseq_prepare_unload() helper requirements
  rseq/selftests: Fix: Namespace gettid() for compatibility with glibc 2.30
  rseq/selftests: Turn off timeout setting
  kunit/kunit_tool_test: Test '--build_dir' option run
  kunit: Rename 'kunitconfig' to '.kunitconfig'
  kunit: Place 'test.log' under the 'build_dir'
  kunit: Create default config in '--build_dir'
  kunit: Remove duplicated defconfig creation
  docs/kunit/start: Use in-tree 'kunit_defconfig'
  selftests: livepatch: Fix it to do root uid check and skip
  selftests: firmware: Fix it to do root uid check and skip
  selftests: filesystems/epoll: fix build error
2019-12-27 11:30:26 -08:00
Linus Torvalds
1413c36132 Merge tag 'pm-5.5-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management fixes from Rafael Wysocki:
 "Fix compile test of the Tegra devfreq driver (Arnd Bergmann) and
  remove redundant Kconfig dependencies from multiple devfreq drivers
  (Leonard Crestez)"

* tag 'pm-5.5-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  PM / devfreq: tegra: Add COMMON_CLK dependency
  PM / devfreq: Drop explicit selection of PM_OPP
2019-12-27 11:26:54 -08:00
Linus Torvalds
534121d289 Merge tag 'io_uring-5.5-20191226' of git://git.kernel.dk/linux-block
Pull io_uring fixes from Jens Axboe:

 - Removal of now unused busy wqe list (Hillf)

 - Add cond_resched() to io-wq work processing (Hillf)

 - And then the series that I hinted at from last week, which removes
   the sqe from the io_kiocb and keeps all sqe handling on the prep
   side. This guarantees that an opcode can't do the wrong thing and
   read the sqe more than once. This is unchanged from last week, no
   issues have been observed with this in testing. Hence I really think
   we should fold this into 5.5.

* tag 'io_uring-5.5-20191226' of git://git.kernel.dk/linux-block:
  io-wq: add cond_resched() to worker thread
  io-wq: remove unused busy list from io_sqe
  io_uring: pass in 'sqe' to the prep handlers
  io_uring: standardize the prep methods
  io_uring: read 'count' for IORING_OP_TIMEOUT in prep handler
  io_uring: move all prep state for IORING_OP_{SEND,RECV}_MGS to prep handler
  io_uring: move all prep state for IORING_OP_CONNECT to prep handler
  io_uring: add and use struct io_rw for read/writes
  io_uring: use u64_to_user_ptr() consistently
2019-12-27 11:17:08 -08:00
Linus Torvalds
0f710a5572 Merge tag 'libata-5.5-20191226' of git://git.kernel.dk/linux-block
Pull libata fixes from Jens Axboe:
 "Two things in here:

   - First half of a series that fixes ahci_brcm, also marked for
     stable. The other part of the series is going into 5.6 (Florian)

   - sata_nv regression fix that is also marked for stable (Sascha)"

* tag 'libata-5.5-20191226' of git://git.kernel.dk/linux-block:
  ata: ahci_brcm: Add missing clock management during recovery
  ata: ahci_brcm: BCM7425 AHCI requires AHCI_HFLAG_DELAY_ENGINE
  ata: ahci_brcm: Fix AHCI resources management
  ata: libahci_platform: Export again ahci_platform_<en/dis>able_phys()
  libata: Fix retrieving of active qcs
2019-12-27 11:13:18 -08:00
Linus Torvalds
8ae40a6951 Merge tag 'block-5.5-20191226' of git://git.kernel.dk/linux-block
Pull block fixes from Jens Axboe:
 "Only thing here are the changes from Arnd from last week, which now
  have the appropriate header include to ensure they actually compile if
  COMPAT is enabled"

* tag 'block-5.5-20191226' of git://git.kernel.dk/linux-block:
  compat_ioctl: block: handle Persistent Reservations
  compat_ioctl: block: handle add zone open, close and finish ioctl
  compat_ioctl: block: handle BLKGETZONESZ/BLKGETNRZONES
  compat_ioctl: block: handle BLKREPORTZONE/BLKRESETZONE
  pktcdvd: fix regression on 64-bit architectures
2019-12-27 11:09:04 -08:00
Linus Torvalds
a305bd7c9c Merge tag 'gpio-v5.5-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio
Pull GPIO fixes from Linus Walleij:
 "A set of fixes for the v5.5 series:

   - Fix the build for the Xtensa driver.

   - Make sure to set up the parent device for mpc8xxx.

   - Clarify the look-up error message.

   - Fix the usage of the line direction in the mockup device.

   - Fix a type warning on the Aspeed driver.

   - Remove the pointless __exit annotation on the xgs-iproc which is
     causing a compilation problem.

   - Fix up emultation of open drain outputs .get_direction()

   - Fix the IRQ callbacks on the PCA953xx to use bitops and work
     properly.

   - Fix the Kconfig on the Tegra driver"

* tag 'gpio-v5.5-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio:
  gpio: tegra186: Allow building on Tegra194-only configurations
  gpio: pca953x: Switch to bitops in IRQ callbacks
  gpiolib: fix up emulated open drain outputs
  MAINTAINERS: Append missed file to the database
  gpio: xgs-iproc: remove __exit annotation for iproc_gpio_remove
  gpio: aspeed: avoid return type warning
  gpio: mockup: Fix usage of new GPIO_LINE_DIRECTION
  gpio: Fix error message on out-of-range GPIO in lookup table
  gpio: mpc8xxx: Add platform device to gpiochip->parent
  gpio: xtensa: fix driver build
2019-12-27 11:02:48 -08:00
Dave Airlie
e31d941c7d Merge tag 'drm-intel-fixes-2019-12-23' of git://anongit.freedesktop.org/drm/drm-intel into drm-fixes
i915 power and frontbuffer tracking fixes

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/87r20vdlrs.fsf@intel.com
2019-12-27 13:13:30 +10:00
Florian Fainelli
bf0e5013bc ata: ahci_brcm: Add missing clock management during recovery
The downstream implementation of ahci_brcm.c did contain clock
management recovery, but until recently, did that outside of the
libahci_platform helpers and this was unintentionally stripped out while
forward porting the patch upstream.

Add the missing clock management during recovery and sleep for 10
milliseconds per the design team recommendations to ensure the SATA PHY
controller and AFE have been fully quiesced.

Fixes: eb73390ae2 ("ata: ahci_brcm: Recover from failures to identify devices")
Cc: stable@vger.kernel.org
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2019-12-25 20:47:24 -07:00
Florian Fainelli
1a3d78cb6e ata: ahci_brcm: BCM7425 AHCI requires AHCI_HFLAG_DELAY_ENGINE
Set AHCI_HFLAG_DELAY_ENGINE for the BCM7425 AHCI controller thus making
it conforming to the 'strict' AHCI implementation which this controller
is based on.

This solves long link establishment with specific hard drives (e.g.:
Seagate ST1000VM002-9ZL1 SC12) that would otherwise have to complete the
error recovery handling before finally establishing a succesful SATA
link at the desired speed.

We re-order the hpriv->flags assignment to also remove the NONCQ quirk
since we can set the flag directly.

Fixes: 9586114cf1e9 ("ata: ahci_brcmstb: add support MIPS-based platforms")
Fixes: 423be77daabe ("ata: ahci_brcmstb: add quirk for broken ncq")
Cc: stable@vger.kernel.org
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2019-12-25 20:47:23 -07:00
Florian Fainelli
c0cdf2ac4b ata: ahci_brcm: Fix AHCI resources management
The AHCI resources management within ahci_brcm.c is a little
convoluted, largely because it historically had a dedicated clock that
was managed within this file in the downstream tree. Once brough
upstream though, the clock was left to be managed by libahci_platform.c
which is entirely appropriate.

This patch series ensures that the AHCI resources are fetched and
enabled before any register access is done, thus avoiding bus errors on
platforms which clock gate the controller by default.

As a result we need to re-arrange the suspend() and resume() functions
in order to avoid accessing registers after the clocks have been turned
off respectively before the clocks have been turned on. Finally, we can
refactor brcm_ahci_get_portmask() in order to fetch the number of ports
from hpriv->mmio which is now accessible without jumping through hoops
like we used to do.

The commit pointed in the Fixes tag is both old and new enough not to
require major headaches for backporting of this patch.

Fixes: eba68f8297 ("ata: ahci_brcmstb: rename to support across Broadcom SoC's")
Cc: stable@vger.kernel.org
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2019-12-25 20:47:21 -07:00
Florian Fainelli
84b032dbfd ata: libahci_platform: Export again ahci_platform_<en/dis>able_phys()
This reverts commit 6bb86fefa0
("libahci_platform: Staticize ahci_platform_<en/dis>able_phys()") we are
going to need ahci_platform_{enable,disable}_phys() in a subsequent
commit for ahci_brcm.c in order to properly control the PHY
initialization order.

Also make sure the function prototypes are declared in
include/linux/ahci_platform.h as a result.

Cc: stable@vger.kernel.org
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2019-12-25 20:47:19 -07:00
Sascha Hauer
8385d756e1 libata: Fix retrieving of active qcs
ata_qc_complete_multiple() is called with a mask of the still active
tags.

mv_sata doesn't have this information directly and instead calculates
the still active tags from the started tags (ap->qc_active) and the
finished tags as (ap->qc_active ^ done_mask)

Since 28361c4036 the hw_tag and tag are no longer the same and the
equation is no longer valid. In ata_exec_internal_sg() ap->qc_active is
initialized as 1ULL << ATA_TAG_INTERNAL, but in hardware tag 0 is
started and this will be in done_mask on completion. ap->qc_active ^
done_mask becomes 0x100000000 ^ 0x1 = 0x100000001 and thus tag 0 used as
the internal tag will never be reported as completed.

This is fixed by introducing ata_qc_get_active() which returns the
active hardware tags and calling it where appropriate.

This is tested on mv_sata, but sata_fsl and sata_nv suffer from the same
problem. There is another case in sata_nv that most likely needs fixing
as well, but this looks a little different, so I wasn't confident enough
to change that.

Fixes: 28361c4036 ("libata: add extra internal command")
Cc: stable@vger.kernel.org
Tested-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Add missing export of ata_qc_get_active(), as per Pali.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
2019-12-25 17:08:33 -07:00
Rafael J. Wysocki
2cb7bfc1ca Merge tag 'devfreq-fixes-for-5.5-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/chanwoo/linux
Pull devfreq fixes for 5.5-rc4 from Chanwoo Choi:

"1. Fix the build error of tegra*-devfreq.c when COMPILE_TEST is enabled.
 2. Drop unneeded PM_OPP dependency from each driver in Kconfig."

* tag 'devfreq-fixes-for-5.5-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/chanwoo/linux:
  PM / devfreq: tegra: Add COMMON_CLK dependency
  PM / devfreq: Drop explicit selection of PM_OPP
2019-12-25 15:15:55 +01:00
Hillf Danton
fd1c4bc6e9 io-wq: add cond_resched() to worker thread
Reschedule the current IO worker to cut the risk that it is becoming
a cpu hog.

Signed-off-by: Hillf Danton <hdanton@sina.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2019-12-24 09:14:29 -07:00
Mathieu Desnoyers
2a1f40adfb rseq/selftests: Clarify rseq_prepare_unload() helper requirements
The rseq.h UAPI now documents that the rseq_cs field must be cleared
before reclaiming memory that contains the targeted struct rseq_cs, but
also that the rseq_cs field must be cleared before reclaiming memory of
the code pointed to by the rseq_cs start_ip and post_commit_offset
fields.

While we can expect that use of dlclose(3) will typically unmap
both struct rseq_cs and its associated code at once, nothing would
theoretically prevent a JIT from reclaiming the code without
reclaiming the struct rseq_cs, which would erroneously allow the
kernel to consider new code which is not a rseq critical section
as a rseq critical section following a code reclaim.

Suggested-by: Florian Weimer <fw@deneb.enyo.de>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Shuah Khan <skhan@linuxfoundation.org>
Cc: Florian Weimer <fw@deneb.enyo.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: "Paul E. McKenney" <paulmck@linux.ibm.com>
Cc: Boqun Feng <boqun.feng@gmail.com>
Cc: "H . Peter Anvin" <hpa@zytor.com>
Cc: Paul Turner <pjt@google.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2019-12-23 10:52:41 -07:00
Mathieu Desnoyers
8df34c5632 rseq/selftests: Fix: Namespace gettid() for compatibility with glibc 2.30
glibc 2.30 introduces gettid() in public headers, which clashes with
the internal static definition within rseq selftests.

Rename gettid() to rseq_gettid() to eliminate this symbol name clash.

Reported-by: Tommi T. Rantala <tommi.t.rantala@nokia.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Shuah Khan <skhan@linuxfoundation.org>
Cc: Tommi T. Rantala <tommi.t.rantala@nokia.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: "Paul E. McKenney" <paulmck@linux.ibm.com>
Cc: Boqun Feng <boqun.feng@gmail.com>
Cc: "H . Peter Anvin" <hpa@zytor.com>
Cc: Paul Turner <pjt@google.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: <stable@vger.kernel.org>	# v4.18+
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2019-12-23 10:52:41 -07:00
Mathieu Desnoyers
af9cb29c54 rseq/selftests: Turn off timeout setting
As the rseq selftests can run for a long period of time, disable the
timeout that the general selftests have.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Shuah Khan <skhan@linuxfoundation.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: "Paul E. McKenney" <paulmck@linux.ibm.com>
Cc: Boqun Feng <boqun.feng@gmail.com>
Cc: "H . Peter Anvin" <hpa@zytor.com>
Cc: Paul Turner <pjt@google.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2019-12-23 10:52:41 -07:00
SeongJae Park
b1b35201bc kunit/kunit_tool_test: Test '--build_dir' option run
This commit adds kunit tool test for the '--build_dir' option.

Signed-off-by: SeongJae Park <sjpark@amazon.de>
Reviewed-by: Brendan Higgins <brendanhiggins@google.com>
Tested-by: Brendan Higgins <brendanhiggins@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2019-12-23 10:52:41 -07:00
SeongJae Park
14ee5cfd45 kunit: Rename 'kunitconfig' to '.kunitconfig'
This commit renames 'kunitconfig' to '.kunitconfig' so that it can be
automatically ignored by git and do not disturb people who want to type
'kernel/' by pressing only the 'k' and then 'tab' key.

Signed-off-by: SeongJae Park <sjpark@amazon.de>
Reviewed-by: Brendan Higgins <brendanhiggins@google.com>
Tested-by: Brendan Higgins <brendanhiggins@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2019-12-23 10:52:41 -07:00
SeongJae Park
609952c2af kunit: Place 'test.log' under the 'build_dir'
'kunit' writes the 'test.log' under the kernel source directory even
though a 'build_dir' option is given.  As users who use the option might
expect the outputs to be placed under the specified directory, this
commit modifies the logic to write the log file under the 'build_dir'.

Signed-off-by: SeongJae Park <sjpark@amazon.de>
Reviewed-by: Brendan Higgins <brendanhiggins@google.com>
Tested-by: Brendan Higgins <brendanhiggins@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2019-12-23 10:52:41 -07:00
SeongJae Park
e3212513a8 kunit: Create default config in '--build_dir'
If both '--build_dir' and '--defconfig' are given, the handling of
'--defconfig' ignores '--build_dir' option.  This commit modifies the
behavior to respect '--build_dir' option.

Reported-by: Brendan Higgins <brendanhiggins@google.com>
Suggested-by: Brendan Higgins <brendanhiggins@google.com>
Signed-off-by: SeongJae Park <sjpark@amazon.de>
Reviewed-by: Brendan Higgins <brendanhiggins@google.com>
Tested-by: Brendan Higgins <brendanhiggins@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2019-12-23 10:52:41 -07:00
SeongJae Park
8c0140facb kunit: Remove duplicated defconfig creation
'--defconfig' option is handled by the 'main() of the 'kunit.py' but
again handled in following 'run_tests()'.  This commit removes this
duplicated handling of the option in the 'run_tests()'.

Signed-off-by: SeongJae Park <sjpark@amazon.de>
Reviewed-by: Brendan Higgins <brendanhiggins@google.com>
Tested-by: Brendan Higgins <brendanhiggins@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2019-12-23 10:52:40 -07:00
SeongJae Park
1c68cbadf0 docs/kunit/start: Use in-tree 'kunit_defconfig'
The kunit doc suggests users to get the default `kunitconfig` from an
external git tree.  However, the file is already located under the
`arch/um/configs/` of the kernel tree.  Because the local file is easier
to access and maintain, this commit updates the doc to use it.

Signed-off-by: SeongJae Park <sjpark@amazon.de>
Reviewed-by: Brendan Higgins <brendanhiggins@google.com>
Tested-by: Brendan Higgins <brendanhiggins@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2019-12-23 10:52:40 -07:00
Shuah Khan
05564c29fc selftests: livepatch: Fix it to do root uid check and skip
livepatch test configures the system and debug environment to run
tests. Some of these actions fail without root access and test
dumps several permission denied messages before it exits.

Fix test-state.sh to call setup_config instead of set_dynamic_debug
as suggested by Petr Mladek <pmladek@suse.com>

Fix it to check root uid and exit with skip code instead.

Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Acked-by: Joe Lawrence <joe.lawrence@redhat.com>
Reviewed-by: Petr Mladek <pmladek@suse.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2019-12-23 10:52:40 -07:00
Shuah Khan
c65e41538b selftests: firmware: Fix it to do root uid check and skip
firmware attempts to load test modules that require root access
and fail. Fix it to check for root uid and exit with skip code
instead.

Before this fix:

selftests: firmware: fw_run_tests.sh
modprobe: ERROR: could not insert 'test_firmware': Operation not permitted
You must have the following enabled in your kernel:
CONFIG_TEST_FIRMWARE=y
CONFIG_FW_LOADER=y
CONFIG_FW_LOADER_USER_HELPER=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
not ok 1 selftests: firmware: fw_run_tests.sh # SKIP

With this fix:

selftests: firmware: fw_run_tests.sh
skip all tests: must be run as root
not ok 1 selftests: firmware: fw_run_tests.sh # SKIP

Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Reviwed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2019-12-23 10:52:40 -07:00
Shuah Khan
7648dd9fc9 selftests: filesystems/epoll: fix build error
epoll build fails to find pthread lib. Fix Makefile to use LDLIBS
instead of LDFLAGS. LDLIBS is the right flag to use here with -l
option when invoking ld.

gcc -I../../../../../usr/include/  -lpthread  epoll_wakeup_test.c  -o .../tools/testing/selftests/filesystems/epoll/epoll_wakeup_test
/usr/bin/ld: /tmp/ccaZvJUl.o: in function `kill_timeout':
epoll_wakeup_test.c:(.text+0x4dd): undefined reference to `pthread_kill'
/usr/bin/ld: epoll_wakeup_test.c:(.text+0x4f2): undefined reference to `pthread_kill'
/usr/bin/ld: /tmp/ccaZvJUl.o: in function `epoll9':
epoll_wakeup_test.c:(.text+0x6382): undefined reference to `pthread_create'
/usr/bin/ld: epoll_wakeup_test.c:(.text+0x64d2): undefined reference to `pthread_create'
/usr/bin/ld: epoll_wakeup_test.c:(.text+0x6626): undefined reference to `pthread_join'
/usr/bin/ld: epoll_wakeup_test.c:(.text+0x684c): undefined reference to `pthread_tryjoin_np'
/usr/bin/ld: epoll_wakeup_test.c:(.text+0x6864): undefined reference to `pthread_kill'
/usr/bin/ld: epoll_wakeup_test.c:(.text+0x6878): undefined reference to `pthread_join'

Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2019-12-23 10:52:40 -07:00
Hillf Danton
1f424e8bd1 io-wq: remove unused busy list from io_sqe
Commit e61df66c69 ("io-wq: ensure free/busy list browsing see all
items") added a list for io workers in addition to the free and busy
lists, not only making worker walk cleaner, but leaving the busy list
unused. Let's remove it.

Signed-off-by: Hillf Danton <hdanton@sina.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2019-12-23 08:23:54 -07:00